# ThermIQ — Hardware Reference

## Crypto Miners

| Item | Spec |
|------|------|
| Model | Antminer S19J (x2) |
| Power supply | 2x Schuko per miner |
| Power isolation | Individual LS breaker + contactor per miner |
| Contactors | K10 (Miner 1), K11 (Miner 2) |
| Feedback | Hilfskontakt per Schütz → RevPi DI |
| API | Braiins OS gRPC, port 50051 (`PerformanceService`) |
| Auth | Bearer token (`aWzKUJcmbyBMiTbo` — replace in production) |
| Network | Fixed IP, wired Ethernet only |

## Pumps

| ID | Model | Supply | Control | Notes |
|----|-------|--------|---------|-------|
| P3 | noname pump (miner cooling loop) | 230 V AC | **Relay on/off** via RevPi DO | No speed control — simple contactor |
| P4 | Wilo Stratos PICO plus Art.-No. 4244373 | 230 V AC | **0–10 V via RevPi AIO AO1** | Shielded cable |
| P5 | Wilo Stratos PICO plus Art.-No. 4244373 (Glykol) | 230 V AC | **0–10 V via RevPi AIO AO2** | Shielded cable; ⚠️ missing dotted line in Funktionsschema_Vorlage_Hydraulik.pdf |

**BMS Connect Module** (Wilo Art.-Nr. 4257834): retrofit module for BMS integration.
- 0–10 V analog input for setpoint
- SSM/SBM relay outputs (potential-free)
- Digital input (configurable: extern AUS / MIN / MAX)
- Max ambient: 60°C, SELV galvanically isolated

## Valves

| ID | Model | Actuator | Supply | Control |
|----|-------|----------|--------|---------|
| RV1 | Belimo C320Q-J | CQ230A | 230 V AC | Relay K3/K4 (AUF/ZU) |
| RV2 | Belimo C320Q-J | CQ230A | 230 V AC | Relay K5/K6 (AUF/ZU) |

Note: If only one control input per valve is used, relay block can be reduced.
Hand/0/Auto switches recommended for commissioning.

## Dry Cooler (Rückkühler)

| Item | Spec |
|------|------|
| Fan | 230 V AC |
| Relay | K2 (24 V DC coil, switches 230 V) |
| Control | RevPi DIO DO_RK |
| Feedback | Optional fault signal → RevPi DI |
| Interlock | Enable only when oil and pumps OK |

## Heat Pump

| Item | Spec |
|------|------|
| Model | Buderus WLW186i |
| EVU Input | I1 — dry contact ONLY |
| Relay | K7 (potential-free, 24 V DC coil) |
| Control | RevPi DIO DO_EVU_SPERRE |
| CRITICAL | Never inject voltage into EVU I1 — contact only |

## PLC: RevolutionPi

| Module | Function |
|--------|----------|
| Core | CPU, Ethernet, Linux |
| DIO | Digital I/O (relays, contactors, safety feedback) |
| AIO | Analog I/O (0–10 V pump setpoints, sensors) |

RevPi runs Linux, MQTT client, connects via LAN to industrial switch.
If RevPi crashes → miners must shut down (hardware safety ensures this).

## Inverters

| Item | Spec |
|------|------|
| Model | Deye hybrid inverter(s) |
| Interface | RS485 Modbus (NOT Modbus TCP over LAN — unreliable) |
| Library | [sunsynk](https://github.com/kellerza/sunsynk) for Raspberry Pi |
| Ref | YouTube: https://www.youtube.com/watch?v=u9df0YHfNtM |

## Energy Meters

- RS485 Modbus
- Connected via USB RS485 gateway on Raspberry Pi or RevPi

## Network Hardware

| Item | Spec |
|------|------|
| Switch | Industrial, wired Ethernet only |
| Site Server | Intel N100 Mini PC (e.g. Beelink EQ12) — Node-RED + Mosquitto + Home Assistant (Phase 1); DIN rail via adapter |
| RevPi | Fixed IP, MQTT client |
| NTP | Required for timestamps |
| WiFi | NOT used for any critical energy component |

## Power Distribution (Schaltschrank)

| Component | Notes |
|-----------|-------|
| Q0 | FI/LS (RCD + circuit breaker) for whole cabinet |
| 230 V AC bus | From Q0 |
| 24 V DC PSU | Fed from AC bus, supplies RevPi, relay coils, safety circuit |
| LS Miner 1/2 | Individual breakers before K10/K11 |
| LS Pumpen | Breaker for P3, P4, P5 |
| LS Ventile | Breaker for RV1, RV2 |
| LS RK | Breaker for Rückkühler fan |

## Storage Components

- **Pufferspeicher**: buffer tank for thermal energy
- **Warmwasserspeicher**: domestic hot water tank
- **Batteries**: coupled to Deye inverter for energy storage
- **Smartmeter**: grid metering

## Sensors

### Hardware-Sicherheitssensoren (direkt in Safety-Kette)
- Temperature sensor (TEMP MAX — NC contact to safety relay)
- Emergency stop buttons (E-Stop 1, E-Stop 2 — NC)
- Reset button (NO)

> **Hinweis:** Ein physischer Durchflusssensor (FLOW OK) wird nicht verbaut. Die Überwachung des Miner-Kühlkreisdurchflusses erfolgt softwareseitig über Temperaturauswertung (PFLICHTENHEFT_SOFTWARE.md, SA-001).

### Analoge Temperatursensoren (RevPi AI)
- AI1 — Pufferspeicher-Temperatur (PT1000 oder 4-20 mA, TBD)
- AI2 — Warmwasserspeicher-Temperatur (PT1000 oder 4-20 mA, TBD)
- AI3 — Außentemperatur (optional, für Übergangs-Modus)

### Miner-Temperaturen (via gRPC)
- Miner 1 Chip-Temperatur — ausgelesen via Braiins OS gRPC API
- Miner 2 Chip-Temperatur — ausgelesen via Braiins OS gRPC API